John,
Not sure if it's standard or not, as it was on my loader also, but on the J.D. Configurator, it is listed as an optional attachment priced at $37.00. A list of the "standard configuration" of the 430 loader doesn't list it as part of the package. If it is an option, I'd bet most dealers throw it in as a freebie, given the low cost.
Hoss